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(formerly known as Razorback Technology Intermediate Holdings, Inc.) and Endure Digital, Inc. (formerly known as Razorback technology,\nInc.) (the \"Merger Agreement\"), pursuant to which Endure Digital, Inc. merged with and into the issuer (the \"Merger\") effective as of February 10,\n2021. Pursuant to the Merger Agreement, at the effective time of the Merger (the \"Effective Time\"), each share of the Company's common stock\nautomatically converted into the right to receive $9.50 per share in cash (the \"Merger Consideration\")."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-21-009374","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1456823/000120919121009374/doc4.xml","form_type":"4"}},{"id":2925962,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"director nominee"}}],"security":"common stock","published_at":"2021-01-04T17:04:07.000Z","date":"2021-01-01","kind":"grant","acquired":true,"shares":1750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares of common stock reported reflect quarterly payment to directors for service. All shares are owned directly by Mr. Montagner, a director of Cogent Communications, Inc."}],"balance_after":52750,"source":{"system":"sec-edgar","filing":"0001567619-21-000017","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761921000017/doc1.xml","form_type":"4"}},{"id":3018759,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2020-10-01T17:02:58.000Z","date":"2020-10-01","kind":"grant","acquired":true,"shares":1750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."}],"balance_after":51000,"source":{"system":"sec-edgar","filing":"0001567619-20-017323","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761920017323/doc1.xml","form_type":"4"}},{"id":3067330,"issuer":{"id":11801,"kind":"organization","name":"Endurance International Group Holdings, Inc.","symbol":"EIGI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-08-05T21:33:41.000Z","date":"2020-08-03","kind":"sale","acquired":false,"shares":15695,"price":5.6172,"value":88161.954,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy the issuer's tax withholding obligations in connection with the vesting of restricted stock units granted to the reporting person on July 31, 2019."},{"field":"shares","element":"transactionShares","label":"F2","text":"The automatic sale of the reporting person's shares is provided for in a restricted stock unit agreement constituting a \"binding contract\" consistent with the affirmative defense to liability under Rule 10b5-1."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 708,689 shares of common stock underlying restricted stock units, all of which are subject to time-based vesting."}],"balance_after":1307294,"source":{"system":"sec-edgar","filing":"0001209191-20-045218","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1456823/000120919120045218/doc4.xml","form_type":"4"}},{"id":3095458,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2020-07-01T19:20:14.000Z","date":"2020-07-01","kind":"grant","acquired":true,"shares":1750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  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automatically sold to satisfy the issuer's tax withholding obligations in connection with the vesting of restricted stock granted to the reporting person on April 28, 2016"},{"field":"shares","element":"transactionShares","label":"F2","text":"The automatic sale of the reporting person's shares is provided for in a restricted stock agreement constituting a \"binding contract\" consistent with the affirmative defense to liability under Rule 10b5-1."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 813,678 shares of common stock underlying restricted stock units, all of which are subject to time-based 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All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."}],"balance_after":50500,"source":{"system":"sec-edgar","filing":"0001567619-20-007265","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761920007265/doc1.xml","form_type":"4"}},{"id":3222917,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2020-03-06T21:47:36.000Z","date":"2020-03-06","kind":"gift","acquired":false,"shares":300,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"Mr. Montagner, a director of the company, made a gift of stock to a university."}],"balance_after":48750,"source":{"system":"sec-edgar","filing":"0001567619-20-005843","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761920005843/doc1.xml","form_type":"4"}},{"id":3222916,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2020-03-06T21:47:36.000Z","date":"2020-03-05","kind":"gift","acquired":false,"shares":350,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"Mr. Montagner, a director of the company, made a gift of stock to a university."}],"balance_after":49050,"source":{"system":"sec-edgar","filing":"0001567619-20-005843","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761920005843/doc1.xml","form_type":"4"}},{"id":3233387,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2020-03-03T17:28:56.000Z","date":"2020-03-03","kind":"sale","acquired":false,"shares":1350,"price":79.4,"value":107190.0,"ownership":{"direct":true},"balance_after":49400,"source":{"system":"sec-edgar","filing":"0001567619-20-005403","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761920005403/doc1.xml","form_type":"4"}},{"id":3276920,"issuer":{"id":11801,"kind":"organization","name":"Endurance International Group Holdings, Inc.","symbol":"EIGI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-02-12T22:19:39.000Z","date":"2020-02-11","kind":"sale","acquired":false,"shares":4368,"price":4.7071,"value":20560.6128,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy the issuer's tax withholding obligations in connection with the vesting of restricted stock units granted to the reporting person on February 9, 2018."},{"field":"shares","element":"transactionShares","label":"F2","text":"The automatic sale of the reporting person's shares is provided for in a restricted stock unit agreement constituting a \"binding contract\" consistent with the affirmative defense to liability under Rule 10b5-1"},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 of Table I is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.7067 to $4.735 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 813,678 shares of common stock underlying restricted stock units, all of which are subject to time-based vesting."}],"balance_after":1363642,"source":{"system":"sec-edgar","filing":"0001209191-20-008880","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1456823/000120919120008880/doc4.xml","form_type":"4"}},{"id":3276919,"issuer":{"id":11801,"kind":"organization","name":"Endurance International Group Holdings, Inc.","symbol":"EIGI"},"owners":[{"id":34534,"kind":"person","name":"Montagner 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Group Holdings, Inc.","symbol":"EIGI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-04-18T20:59:44.000Z","date":"2018-04-16","kind":"sale","acquired":false,"shares":64032,"price":7.3005,"value":467465.616,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy the issuer's tax withholding obligations in connection with the vesting of restricted stock units granted to the reporting person on May 12, 2017."},{"field":"shares","element":"transactionShares","label":"F2","text":"The automatic sale of the reporting person's shares is provided for in a restricted stock agreement constituting a \"binding contract\" consistent with the affirmative defense to liability under Rule 10b5-1."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 234,235 shares of common stock underlying restricted stock units, all of which are subject to time-based vesting."}],"balance_after":618205,"source":{"system":"sec-edgar","filing":"0001209191-18-025391","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1456823/000120919118025391/doc4.xml","form_type":"4"}},{"id":3969762,"issuer":{"id":11801,"kind":"organization","name":"Endurance International Group Holdings, Inc.","symbol":"EIGI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-04-04T22:53:00.000Z","date":"2018-04-02","kind":"sale","acquired":false,"shares":8405,"price":7.301,"value":61364.905,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares automatically sold to satisfy the issuer's tax withholding obligations in connection with the vesting of restricted stock granted to the reporting person on April 28, 2016."},{"field":"shares","element":"transactionShares","label":"F2","text":"The automatic sale of the reporting person's shares is provided for in a restricted stock agreement constituting a \"binding contract\" consistent with the affirmative defense to liability under Rule 10b5-1."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 of Table I is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.30 to $7.4114 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 393,471 shares of common stock underlying restricted stock units, all of which are subject to time-based vesting."}],"balance_after":682237,"source":{"system":"sec-edgar","filing":"0001209191-18-023917","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1456823/000120919118023917/doc4.xml","form_type":"4"}},{"id":3977045,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2018-04-02T20:29:11.000Z","date":"2018-04-01","kind":"grant","acquired":true,"shares":1750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."}],"balance_after":43500,"source":{"system":"sec-edgar","filing":"0001140361-18-016410","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036118016410/doc1.xml","form_type":"4"}},{"id":4062700,"issuer":{"id":11801,"kind":"organization","name":"Endurance International Group Holdings, Inc.","symbol":"EIGI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-02-13T23:19:53.000Z","date":"2018-02-09","kind":"grant","acquired":true,"shares":75000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 393,471 shares of common stock underlying restricted stock units, all of which are subject to time-based vesting."}],"balance_after":690642,"source":{"system":"sec-edgar","filing":"0001209191-18-009723","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1456823/000120919118009723/doc4.xml","form_type":"4"}},{"id":4117400,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2018-01-02T21:06:39.000Z","date":"2018-01-01","kind":"grant","acquired":true,"shares":1750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"The shares of common stock reported reflect a quarterly payment to directors for service.  All shares are owned directly by Mr. Montagner, a director of Cogent Communications Holdings, Inc."}],"balance_after":41750,"source":{"system":"sec-edgar","filing":"0001140361-18-000163","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036118000163/doc1.xml","form_type":"4"}},{"id":4130464,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":34534,"kind":"person","name":"Montagner Marc","position":1,"cik":"0001456823","reported_name":"Montagner Marc","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock","published_at":"2017-12-15T16:46:30.000Z","date":"2017-12-15","kind":"sale","acquired":false,"shares":5000,"price":47,"value":235000.0,"ownership":{"direct":true},"balance_after":40000,"source":{"system":"sec-edgar","filing":"0001140361-17-046337","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036117046337/doc1.xml","form_type":"4"}}],"next_cursor":"2017-12-15T16:46:30.000000Z,4130464"}